Working with map and flatMap

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In this module, you are going to learn:

• How to use operators to transform sequences
• The map operator
• The flatMap operator
• When and how to use the map and flatMap operators
• The concept of upstream and downstream

You can find the code for this module here.

Links

• Why is map called map?
• Javadoc for Mono’s map
• Javadoc for Mono’s flatMap
• Javadoc for Flux’s map
• Javadoc for Flux’s flatMap
• Project Reactor’s flatmap and backpressure

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Table of contents

• Operators to Transform Sequences
• The map Operator
• The flatMap Operator
• Using map and flatMap
• Upstream and downstream
• Coding Exercises

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